Nut castellating machine



Jufiy 25, E933, P, F. RQS$MANN NUT CASTELLATING MACHINE wmms Filed Dec. 26, 1930 6 Sheets-Sheet 1 m m J July 25, 1933. F. RQS$MANN 1,920,108

NUT CA/STELLATING MACHINE Filed Dec. 26, 1930 3 Sheets-Sheet 2 July 25, 1933. P. ROSSMANN 1,920,108

NUT CASTELLATING MACHINE Filed Dec. 26, 1930 s Sheets-Sheet s gnoentoz FETEHFHUSENAZYN PETER F.

tween spaced saws.-

tion;

Patented July 25, 1933 UNirEn srAr Est; PATENT oFFicE RC SSMANN, OF DETRCIT, IVHCHIGAN, .ASSIGILYIOR TO PACKARD MOTOR CAR COMPANY, or nnrnoir, MICHIGAN, VACORPOIRATION or MICHIGAN new GASTELLA'IING MAc inE I Application filed December26, 1930.Seria1 No. 504,964.

' This invention relates to .nut castellating machines. a

An object of the invention is to provide an automatic machine for castellating nuts.

Another object of theinvention is to provide a novel formof automaticv indexing mechanism for the holders of a castellating machine so that the nuts 'will-"be rotated a predetermined degree in their movement be- A further object of the invention resides in a novel mechanism for retaining nuts in their holders while being sawed in acastel' lating machine. I V

Stillanother object of the invention is to provide a 'nut castellating machine with gangs of saws, each of which can be-regulated to cut the desired depth into thenuts. Other objects of the invention will appear from the following description taken in connection with the drawings, which form a part of this specification,' and 'inwhich:

Fig.1 is a perspective View of a. nut castella'ting machine incorporating my inven Fig. 2 is a fragmentary pe'rspectivefview of the indexing mechanism shown associated with one of the nut holders; Fig. 3 is a plan view of the machine Fig. 4 is a sectional view of the machine taken on line 4 et of Fig. 3;

Fig. 5 is a; sectional view of the machine taken'on line 5-5 of Fig. 1, illustrating "the indexing mechanism;

Fig.6 is a :t'ragmentary View partly in section and partly in plan showing adriving" mechanism and a mounting for one of the saw gangs.

Referring now to-the drawings by characters of reference,-1O indicates generally a casing which consists of a closed'end -ll' for housing an electric motor andsuitable driv ing mechanism (not shown). A shaft 12- extends across the open end of the casing and is driven 'through suitable means through the driving mechanism within the closed casing 11, and upon this shaft isfixed adrum13. I

A plurality of holding means are arranged in parallelrows around the drum and consist of a holder portion 14 and a shaft portion 15 which extends through the peripheral wall of the drum and is carried by the-bearing16.- The holder 14 is arranged 'to receive an insert 1-7 and a set sci-eiv 18 extends through the holder and engages the insert to maintain them in fixed relation. The interior, wall "of the insert can be of a form corresponding to that of the nut 19 which it is adapted to receive, and it will be understood that the interior (if-these inserts can'be of difi'erent forms and sizes to suit the nut which is to be castellated.

V I The inner end of the shaft 15 has a gear 20 fixed thereto.

Associated with the gears 20,1 provide automatic indexing mechanism. A shaft 21 extends in an axial direction through the drum adjacent each row of holdersand provided with teeth, as indicated at 22; which are adapted to mesh with each of the gears 20 in the row. Such shafts are carried by bearing 23 intermediate the ends of. thefdrum and by bearings, as indicated-at 2%, in the end walls of the drums. Each shaft is keyedfas indicated at 25, to'the drunrt'oiprevent rotat on but to pe1'1nit a; ii'al movement thereof. A circular indexing ring 26 is'fixedto a bearing member 27 by screws 28,--'and such bearing member is secured'to the end wall 29 of the casing by means ofbolts '30i The indexing ring is thus secureda'djacent one end of the drum and is arranged interiorly of the ends of the shafts 21 projectin g through such end of the. drum i "A bracket 81 is fixed to each' of the projecting ends of the shafts121 which, overlie the index ring and a roller*32 is mounted on a bearing 33 which is carried by each of the brackets. .Thse rollers are arranged to lie within the cam" groove 84: formed in the indexing ring so that'any change in the direction of the "groove relative to the axis of the druinwill move the shafts 21 in an axial direction'and thus rotate the gears 20 and the associated holdersl l.

Rows of sawsare arranged intlie-path of the holders, and the nuts carried thereby are moved successively to the rows of saws during rotation of the drum. The gangs or rows of saws are spaced around aportion of the drum and each row is carriedby a shaft 35. These shafts are rotatably mounted in brackets 36 which are fixed upon shafts 37 carried by the end wall 291 and a Wall of the closed portion of the. casing? Suitable. spacers, as: indicated at 38, are

arranged onthe shafts intermediate the line with the holders on the drum and suitable means,(not shown) can be provided for fixing the saws to the shafts A gear hub 40 extends through wall of the i closed casing and is formed with a gear 4].

on itsexterior end which meshes with the gear 42 fixed to the shaft 35. The gear hub 40 telescopes the shaft 37* extending through the wall of the closed casing" andv the bearing, 0" 60 is arranged intermediate the same While another bearing 43 isarranged between the.

gear hub and the end Wall-of the closed casing through whichv it progectsif gear 44 is keyed to the end of the gear hub 40 interiorly of the closed casing and is rotated through suitable mechanism within thecasw ing. Eachof the'gangs or rows of saws are similar-1n alignment and driven by similar mechanism.

29' of thefcasing and have arms 45 fixed thereto which are adapted to be oscillated to raise or'lower the gangs ofsaws relative to the drum. A bolt 46 is seated in an arcuate slot- 47 in the interior side of the wall 29to prevent its rotation and projects througha similarly arranged arcuate slot 48in the armsv 451 and fa nut 49 is screwedupon' the bolts. against the arms to secure them in 4Q any position of arcuate adjustment. In this manner the depth of the out made in the nuts moving thereunder can beq-regulated asmay be desired. A i p 3 r r h The cam groove .34 extends around the 45 ring Q'Gand isformed with three offset por eons 50; 51 and 52 extending intermediate the saw gangs so that the rollers. 32in followin such ofl'set paths will move the rods QlsutiicientIy to rotate the gears 20 one hun- 59; died twenty degrees during thetravel of -the holders 14- between'each roW or saws. There are three rows or saws and consequently the nuts arerotated one hundred twenty degrees after having a saw out made thereacross be fore they encounter the next rowofsaws,

and in this mannerthreeequally spaced cuts are made across the exposed end ofthe nuts. during-their rotation beneaththe saw gangs.

An arm 53-eXtends downwardly fromthe 6 rear end of the brackets 36 and carries pres sure plates 54 which are provided with openings 55 through whichthe saw-sextend. There is one of these plates extending axially across the drum beneath each row'of saws. and they are pressed agalnst the exposed end saws 39st 1 that the saws are maintained 1 in a The shafts 37extend through the end wall each of the chucks,

of the nuts by springs 56 which also engage .the arms 36. These pressure plates 54 maintain the nuts seated against the bottom of the inserts 17 during'the time that the gangs of sawsare in operation cutting the slots in the ends of the nuts andas the nuts cannot rotate "in tlieinserts they: are definitely posi tionedwithrelation to the saws.

ing in front of the-casing can readily insert the-nuts into the inserts where'they will remain until the drum moves them to the rear of thecasingqwhere they will fall out by gravity as they approach the bottom of the casing, as shown in Fig. 4.

It will be seen. that I: have provided an automatic machine for castellatingnuts in which a large quantityof. nuts will be quickly and automatically sawed; Furthermore, I have provided a novel mechanism for automatically indexing the nuts so that As the drum rotates, an operator standthey will be positioned in-a proper relation beneath similarly arrangedsaws for sawing at differentangles and there-is also readily adjustable mechanism for regulating thedepth-of the out which the saws will make.

While Lha ve herein describedfin some detail a specific embodiment of my inventionywhich I deem to be new and ,advan tageous; and-may specifically clainnl do' not desire it tobe understood that Iny invention is'limited to theexact details of the con struction, as it Will be apparent that changes may; be made therein without departing from the spirit orscopecof my invention.

What I claim is:

1. Ina slotting machineaa. frame, a drumrotatably mountedtinthe frame a group of j chucks mounted on the drumior rotation;

about axes radial to the drum, a pinion on a 9 gear 4 rack engaging eaclrpinion {in the group ,and; slidably mounted on the drum to move the entire group} at once,.a follower on; the gearrack, and a stationary cam track groove in which the follower is mounted, said groove being formed to cause the chucks to be moved to different drum rotates.

2. Ina nut castellating ,mach-ine,.a frame,

a drum mounted for continuous rotation on predetermined positions as the rotated simultaneously upon movement of the cam follower.

4. In a hexagonal nut slotting machine, a drum adapted to be continuously rotated, a plurality of parallel shafts movably mounted on the drum, a plurality of nut holders associated with the shafts, a plurality of spaced cutting means mounted exteriorly of the drum in the path of the Work pieces as they arerevolved by the drum, and means for moving the shafts relative to the drum to place each face of the nut in a position to be slotted.

5. In a nut castellating machine, a frame, a drum rotatably mounted in the frame, nut holders carried by the drum; castellatingmeans comprising a plurality of shafts adjustably mounted in the frame, pairs of arms on each of the shafts, spindles rotatably mounted in the arms, saws carried by the spindles; means for adjusting the position of the saws relative to the nuts and means carried by the arms for seating the nuts in the holders, said means being auto-,

matically adjusted to the nuts as the saws are adjusted thereto.

6. Ina slotting machine, a frame, a drum 7 rotatably mounted in the frame, nut holders carried by the drum; means for cutting the slots comprising a plurality of shafts adj ustably mounted in the frame, pairs of arms on each of the shafts, spindles rotatably arranged in the path of the holding means simultaneously to cut parallel slots in the several rows of nuts, and means for rotating the holding means to place each face of the nuts held thereby in a position to be slotted.

8. In an automatic slotting machine, a drum mounted for rotation about its longitudinal axis, a plurality of devices for holding hexagonal nuts rotatably mounted on the drum, a plurality of rows of saws rotatably mounted in the path of the nut holding devices, and means comprising a cam and follower mechanism for rotating the holders to place each face of the nuts held thereby in a position to be slotted.

PETER F. ROSSMANN. 

